05fcb9ebcd239eaae4f76527366ac2fdcdd4d6d27ec7fc5a2c59c752a1b4880c

Analysis

max time kernel
121s
max time network
124s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
04/06/2024, 22:10

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General

Target

$PLUGINSDIR/app-64.7z
Size

65.5MB
MD5

40437ba8e443e852c89cd6422b536ab4
SHA1

54a78acefd9ae3101c257571f1aad48b5260527c
SHA256

b93f1d159b2c1e2ac9dcacca6b46d0aba9758f10d76bf858a3b813d1325b2df2
SHA512

26535d1405963c981633650b512501e8bcea723f590d28f552f0ab70d26e32bf89910264e0fbac7dba4cba674e0ce111e5cf82da664065b2a24e3b0997e98065
SSDEEP

1572864:TrziNx5qdXsZYjwWiSU+7b+igvXTWYtTWoJbRVvLSZqP3AV+nkT7tpz/1:mx5qdXrjwIv3sfyqTzJbR1LQqIVwkT71

Score

3^/10

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies registry class 9 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\7z_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\7z_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\7z_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\7z_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\7z_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.7z\ = "7z_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.7z	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\7z_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2476	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2476	AcroRd32.exe
2476	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2968 wrote to memory of 2612	2968	cmd.exe	29
PID 2968 wrote to memory of 2612	2968	cmd.exe	29
PID 2968 wrote to memory of 2612	2968	cmd.exe	29
PID 2612 wrote to memory of 2476	2612	rundll32.exe	30
PID 2612 wrote to memory of 2476	2612	rundll32.exe	30
PID 2612 wrote to memory of 2476	2612	rundll32.exe	30
PID 2612 wrote to memory of 2476	2612	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\app-64.7z
1⤵
- Suspicious use of WriteProcessMemory
PID:2968
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\app-64.7z
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2612
- - C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
    "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\app-64.7z"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2476

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
2dd38ab0040a995c37399fbe235cba93

SHA1
d3268f3f1b474b8a916e809f928b7d35cf8677f2

SHA256
abc66f0c584e73063b9995dd6b39ea51756393ba3d1cbd411e101e86b9fbf8b3

SHA512
8b8e2d4f038afb32904e5ce97cae2b03334f142dee914d960c13cb1c269e80174b8eb80e6db9837c5476f28d4179042af3f87ea8f2debedbe6b2b971c6388f7c

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